* Extract method for unlockWithPin
* Extract method for unlockWithMasterPassword
* Switch condition and use early return
* Moved logic that belongs together closer together
* Make unlockWithPin and unlockWithMP private and move them below the public methods
* Extract to new method handlePinRequiredUnlock
Remove kdf and kdfIteration params
* Extract to new method handleMasterPasswordRequiredUnlock
Remove kdf and kdfIteration params